Re: [Swig-user] Best way to debug python error 'XXX undetected error'?

[Jason D. <jd...@ba...>]

Yeah woops, haven't had my morning coffe or something.

Its now like so:

%typemap(out) list<FileObj>
{
	$result = PyList_New($1.size());
	int index = 0;
	for(auto iter = $1.begin(); iter != $1.end(); iter++)
	{
		auto resultobj = SWIG_NewPointerObj((new FileObj(static_cast< const FileObj& >(*iter))), SWIGTYPE_p_FileObj, SWIG_POINTER_OWN |  0 );
		PyList_SetItem($result, index++, resultobj);
	}
}

I am however still getting the weird error:

XXX undetected error
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "TestModify.py", line 30, in <module>
    print 'Children of root (local): '
SystemError: ..\Objects\listobject.c:206: bad argument to internal function

I suppose this must mean I'm still doing something obviously wrong.

-Jason
________________________________________
From: Bob Hood [bh...@co...]
Sent: Friday, May 18, 2012 8:40 AM
To: swi...@li...
Subject: Re: [Swig-user] Best way to debug python error 'XXX undetected error'?

On 5/18/2012 6:14 AM, Jason Dictos wrote:
> %typemap(out) list<FileObj>
> {
>       $result = PyList_New(0);
>       int index = 0;
>       for(auto iter = $1.begin(); iter != $1.end(); iter++)
>       {
>               auto resultobj = SWIG_NewPointerObj((new FileObj(static_cast< const FileObj& >(*iter))), SWIGTYPE_p_FileObj, SWIG_POINTER_OWN |  0 );
>               PyList_SetItem($result, index, resultobj);
>       }
> }

Hmm.. You're creating a list with 0 items, but then using PyList_SetItem() to
set values at indices that don't yet exist.  You might try using
PyList_Append() instead of PyList_SetItem() when starting with an empty list
and see if that improves anything.

Render me gone,                       |||
Bob                                 ^(===)^
---------------------------------oOO--(_)--OOo---------------------------------
    I'm not so good with advice...can I interest you in a sarcastic comment?


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